1. Split the editor window at a tree and panel list to display links to the right of the names with the ability to Drag & Drop items in a list (like in Opera);
2. When you select a list of links to Shift + Up / Down, Ctrl retention with a choice of coatings and after pressing Ctrl + C to send a list of links to the clipboard;
3. Create a menu interface, the editor option to sort items by name, the short name, the address on the description, time of creation, time attendance, through the separator: ascending, descending;
4. When you hover over a folder in the editor show the date of its creation;
5. Add to context menu items in the list items Cut, Copy, Paste, Delete, Select All;
6. In the Opera bookmarks editor, to fix the problem with saving bookmarks to a specific folder on the item "Add bookmark here", at the moment is saved in the root folder.

Many of those things you can already do if you click on Bookmarks>EDIT.
E.g. for copy/paste use Ctrl+C/V
Or try "Favorites" system from Internet Explorer, that offers all that too, except that I'm not sure if you can see the title and the URL of favorites side-by-side.